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RetrofitReady is a free information service. We are not affiliated with SEAI or any government body. Grant figures are indicative only and may change without notice. Always verify current rates and eligibility at seai.ie before signing any contract or starting any work. We do not endorse or guarantee any contractor listed on this site.

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Retrofit ROI Calculator

See the return on investment for improving your BER rating — costs, savings, payback and property value increase.

Retrofit ROI — D2 → B2

Estimated cost

€18,000

Annual saving

€1,500/yr

Payback period

12 years

Property value increase

+€31,500

6 BER bands improved

Estimates based on typical Irish retrofit costs and ESRI property value research. SEAI grants not deducted — use the Grant Checker for grant amounts.

When are you thinking of doing this?

We'll only match you to contractors when you're ready.

Next steps

Check your home →Personalised grant and cost breakdownGrant checker →See which grants apply to your upgradeFind contractors →Get quotes from local contractorsWatch out guide →Mistakes to avoid when retrofitting
Official SEAI Resource — always verify grant details directly with SEAI before applying.

Last verified: 2026-06-01